How close is China to replacing the US as the next "superpower"?

The dramatic economic growth of China, Latin America and India among others has some predicting a total shift in the balance of global power in the coming years. Meanwhile, the people's revolutions across the Middle East have undermined the assumption that military power will always win.

On Wednesday's Riz Khan we ask: How are global power relations being redefined in the 21st century?

We speak with the internationally renowned professor, Joseph Nye, who famously coined the term "soft power" on his latest book The Future of Power.

You can watch the show at 1930 GMT on Al Jazeera English. Repeats will air next day at 0430 GMT, 0830 GMT and 1430 GMT.